Optical properties of rare earth films in paramagnetic and magnetically ordered phases
- 1 April 1975
- journal article
- Published by IOP Publishing in Journal of Physics F: Metal Physics
- Vol. 5 (4), 774-789
- https://doi.org/10.1088/0305-4608/5/4/019
Abstract
Ellipsometric measurements have been made of optical properties of the heavy rare earth metals Gd, Tb, Dy, Ho, Er in the phonon energy range 0.35 eV to 2.5 eV and at certain temperatures between 20K and 300K corresponding to various magnetic phases of the metals. Rather diversive optical behaviour of the metals below the ordering temperature is interpreted in terms of exchange splitting of the levels near the Fermi level causing their reoccupation.Keywords
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